Noble HT-180 HH, Installation, Operation And Service Manual

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07610-004-26-29-E
TROUBLESHOOTING
21
PROBLEM POSSIBLE CAUSE REMEDY
Wash water is not
reaching required
temperature. Faulty wash heater.
Misadjusted/faulty thermostat(s).
Wash thermometer is defective.
Check element for continuity; if open, replace heater.
Verify operation and setting of thermostats; replace if necessary.
Replace thermometer.
Doors will not close
completely. Improper spring tension.
Obstruction in door channel.
Doors are not square with frame.
Adjust spring tension as required by loosening (not removing) spring bolt
nuts and adjusting the tension. Tighten nuts back when done.
Remove the obstruction.
Adjust the frame to accommodate the doors.
Water leaks at the
wash pump. Wash pump seal defective.
Petcock or pump drain (if
equipped) not shut/tight.
Loose hoses (hose clamps) on the
wash pump.
Replace the seal.
Close or tighten.
Tighten the hose clamps.
Will not rinse during
autocycle. Defective rinse solenoid.
Faulty fi ll microswitch.
No water to the machine.
Repair or replace the rinse solenoid as required.
Replace microswitch.
Verify that there is water at 20±5 PSI connected to the machine.
Dishes are not
coming clean. Machine temperatures are not up
to the minimum requirements.
No detergent/too much detergent.
Solid dispenser canister is empty.
Verify that incoming water, rinse water and wash water match the required
temperatures as listed on the machine data plate.
Adjust detergent concentration as required for the amount of water held
by the machine.
Replace the canister.